Food facilities can be registered here: http://www.fda.gov/Food/GuidanceRegulation/FoodFacilityRegistration/ucm2006831.htm.
Beginning January 4, 2020, facilities must submit registrations, registration renewals, updates, and cancellations to the FDA electronically, unless the FDA has granted a waiver. To obtain a waiver, facilities must submit a written request to the FDA that explains why it is not reasonable to use the electronic registration system (e.g., lack of Internet access). Facilities that have been granted waivers may submit registration through mail or fax.